docs: def _assert_explicit_vr(dicom_input):
      """
      Assert that explicit vr is used
      """
      if settings.validate_multiframe_implicit:
          header = dicom_input[0]
          if header.file_meta[0x0002, 0x0010].value == '1.2.840.10008.1.2':
              raise ConversionError('IMPLICIT_VR_ENHANCED_DICOM')